Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Characteristic study of mechanical properties of Structural rolled steel and Stainless steel for MIG welding

구조용 압연강재와 스테인리스 강재의 MIG 용접에 대한 기계적 특성연구

  • Lim, J.Y. (Department of Mechanical Engineering, Kyungil University) ;
  • Yoon, M.J. (Department of Mechanical and Automotive Engineering, Kyungil University) ;
  • Kim, S.Y. (Department of Nano Fusion Technology, Pusan National University) ;
  • Kim, T.G. (Department of Nanomechatronics Engineering, Pusan National University)
  • 임종영 (경일대학교 대학원 기계공학과) ;
  • 윤명진 (경일대학교 기계자동차공학부) ;
  • 김상윤 (부산대학교 나노융합기술학과) ;
  • 김태규 (부산대학교 나노메카트로닉스공학과)
  • Received : 2013.12.31
  • Accepted : 2014.02.18
  • Published : 2014.02.28
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Abstract

It is well known that fatigue failures occur on welded structures in industrial application due to repetitive load force. In order to decrease the incidence of fatigue failure, we analyzed the mechanical properties based on structural aspects in rolled steel(SS 400) welded onto stainless steel (STS 304) by the MIG welding method as well as the structure of rolled steel welded onto itself. We compared the hardness, tensile and fatigue properties with two types of samples which had no defects on the welding parts as observed by X-ray topographic analysis. It was found that the tensile and fatigue strength levels of SS 400 welded onto STS 304 by the MIG welding method were higher than those of STS 304 welded onto itself.

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References

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